ICD10BillableValid for clinical use

ICD-10 Code E20.810: Autosomal dominant hypocalcemia

E20.810 is a billable ICD-10 diagnosis code used to classify Autosomal dominant hypocalcemia in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Endocrine, nutritional and metabolic diseases (E00-E89).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Endocrine, nutritional and metabolic diseases (E00-E89).

When is it used?

  • May be used when a clinician documents autosomal dominant hypocalcemia in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
4Endocrine, nutritional and metabolic diseases (E00-E89)
block
E20-E35Disorders of other endocrine glands
category
E20Hypoparathyroidism
category
E20.8Other hypoparathyroidism
category
E20.81Hypoparathyroidism due to impaired parathyroid hormone secretion
currentE20.81

Official coding notes

Inclusion terms
  • Autosomal dominant hypocalcemia type 1 (ADH1)
  • Autosomal dominant hypocalcemia type 2 (ADH2)
Code also
  • , if applicable, any associated conditions, such as:
  • calculus of kidney (N20.0)
  • chronic kidney disease (N18.-)
  • respiratory distress (J80, R06.-)
  • seizure disorder (G40.-, R56.9)

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

EndocrinologistGeneral Physician

Coding guidelines

Common synonyms

Autosomal dominant hypocalcemia

Frequently asked questions

Code details

CodeE20.810
SystemICD10
Display nameAutosomal dominant hypocalcemia
ChapterEndocrine, nutritional and metabolic diseases (E00-E89)
BlockDisorders of other endocrine glands

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
HypocalcemiaHypocalcemiaHypocalcemia

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code E20.810 for Autosomal dominant hypocalcemia | HealthAssure